Machine for setting calks in boots or shoes.



Pate'ntd' Mar. l2, I90I.

c. n. JOHNSTON. MACHINE FOR SETTING CAI-K3 IN BOOTS 0B SHOES.

(Application flied Apr. 23, 1899.)

(No Model.)

INVENTOI? W/T E8858:

llivrrrjp TATES ATENT @FFICE.

CHARLES ROBERT JOHNSTON, OF EUREKA, CALIFORNIA.

SPECIFICATION forming part of Letters Patent No. 669,835, dated March 12, 1901.

Application filed April 28, 1899.

T (LZZ whom, it may concern.-

Be it known th atI, CHARLES ROBERT J OHN- STON, a citizen of the United States, and a resident of Eureka, in the county of Humboldt and State of California, have invented a new and Improved Machine for Setting Oalksin Boots or Shoes, of which the followingis a full, clear, and exact description.

The purpose of the invention is to provide a simple yet durable machine especially adapted for calking boots and shoes and to simplify the construction of such machines and render them very effective in operation.

The invention consists in the novel construction and combination of the several parts, will be hereinafter fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forminga part of this specification, in which similar characters of reference indi' cate correspondingparts in all the figures.

Figure 1 is a perspective view of the improved machine. Fig. 2 is a side elevation of the machine. Fig. 3 is a vertical section taken substantially on the line 3 3 of Fig. 2. Fig. 4 is a plan view of the tool-holder. Fig. 5 is a partial elevation and partial sectional view of the said tool-holder. Fig. 6 is apartial side elevation and partial sectional view.

of a calking set adapted for use in connection with the machine, and Fig. 7 is a detail sectional view illustrating the connection of the plunger to a lever.

A represents a table shown as provided with legs 10 and the legs as provided with braces 11. The machine consists, primarily, of a body-arm B, a lever (J, carried by the bodyarm, a plunger D, operated by said lever, and a holder or rest E. The body-arm B is provided with a base-plate 12, that extends beyond its front and rear edges, the baseplate at the rear having a longitudinal slot 13 therein, and at the front the base-plate is usually provided with an auxiliary plate 14, having a central sleeve that extends down through an opening in the base and the opening in the table.

The body-arm 13 consists of an upright sec.- tion 16 and a horizontal section 17, that extends over the auxiliary plate 14. The outer end of the horizontal section of the body-arm is curved upward and bifurcated to pivotally Serial No. 714,833. (No moan.

receive one end of the lever O. This lever is carried to one side of the body-arm at its rear portion, so as to clear the side portion of the arm as said lever descends. A pitman 18 is pivotally connected with the rear end of the lever G and likewise with a foot-lever 19, fulcru med upon one of the legs of the table, asshown in Figs. 1 and 2. The free end of this lever 19 is normally held elevated through the medium of a spring 20, attached to the footlever between its pivotal connec tion with the table-leg and the pitman-rod. The plunger D is bifurcated at its upper end to receive the lever O, and the plunger, which has a sliding as well as a pivotal movement. is pivoted to the lever by a suitable pin 21 (shown in Fig. '7) and is located near the forward end of the lever. The plunger has movement in a suitable opening produced in the horizontal member of the body-arm B, as shown in Fig. 3.

A socket 22 is formed at the lower end of the plunger, the said socket being adapted to receive the shank of a die or set F, and when the shank of said tool is round it may be prevented from turning in the socket by forming a groove in the wall of the socket and a feather upon the shank. The tool is prevented from dropping out from the socket by means of a spring 23, the free end of which extends into the socket to a bearing against the shank introduced into said socket, as is likewise shown in Fig. 3. Two forms of toolholders E may be used in connection with the machine-namely, a horizontal holder, as illustrated, or an upright holder.

The tool-holder E is preferably provided with a concaved upper surface, terminating at one end in a fiat head having a poly onal opening 24 therein, extending through the holder from top to bottom, and this end of the tool-holder is provided with a spring 25, having bearing against the under face of the holder and crossing the bottom of the opening 24, as shown in Fig. 5. This spring serves to force upward the tool-section introduced into the opening 24 after said tool-section has been broughtinto action and relieved from pressure. At the opposite end of the tool-holder E a reduced shank 26 is provided, forming a shoulder 27. The shank 26 is usually reotangular in cross-section and is pro vided with a dovetail or undercut slot 28 in its upper surface. The shank of the toolholder is passed through a correspondinglyshaped opening in the upright portion 16 0f the body-arm B, as shown in Figs. 1 and "2, the rear end of the shank extending out beyond the rear face of the said body-arm, and a key 29 is introduced into the slot 28, which key serves to hold the tool-holder firmly in position, and when said tool-holder is in its proper position its head or front section will be immediately below the lower end of the plunger D. a

In Fig. 6 I have illustrated in detail the set or die F, the said set or die comprising a body 34, which is to be received in the socket of the plunger, and a reduced lower end 35. The reduced lower portion of the set is ten dered magnetic, and the extreme lower end of the set is normally within a sleeve 36, mounted to slide upon its reduced section, while a spring 37 is attached to the larger portion of the set and to the said-sleeve, so that while a nail is in engagement with the magnetized end of the set or die the head of the nailwill be protected, and when the sleeve comes in contact with the sole of a boot or.

. near the bottom, as is also shown in Fig. 2.

A nail-box of any approved construction is I secured to the upper member of the plate 38; but the said nail-box is provided with a shoe 42, extending downward and forward toward the tool carried by the plunger. The plate 38 and the nail-box it is designed to carry may be dispensed with, if desired.

Having thus described my invention, I claim as new and desire to secure by Letters Patent In a machine for calking boots and shoes, the combination, with a body-arm, a lever fulcrumed at the forward portion of the bodyarm,and a plunger mounted to slide in the said body-arm and having sliding pivotal engage ment with the said lever, a set carried by the said plunger, the set being provided with a spring-controlled sleeve or head at its lower end, adapted to normally extend below said end, of a tool-holder removably attached to a portion of the body-arm below the plungercarrying section thereof, the tool-holder being provided with a head adapted,when the holder is in position, to be below and in alinement with the path of the plunger carrying the set, the said head having a polygonal opening of even diameterextendingthrough from the top to the bottom, and a spring at the bottom portion of the said tool-holder, secured atone end to said holder, the other end of the spring extending across the bottom portion of the said opening and normally resting against the bottom portion of the said tool-holder,for the purpose set forth.

CHARLES ROBERT JOHNSTON.

Witnesses:

(J. W. RICHARDSON, ROBERT W. JOHNSTON. 

